Techno‐economic feasibility of building attached photovoltaic systems for the various climatic conditions of Iran

2019 ◽  
Vol 38 (6) ◽  
Author(s):  
Mohammad Sadjad Karimi ◽  
Farivar Fazelpour ◽  
Marc A. Rosen ◽  
Mehrzad Shams
Keyword(s):  
Climatic Conditions ◽  
Economic Feasibility ◽  
Photovoltaic Systems

ECONOMIC FEASIBILITY OF PHOTOVOLTAIC SYSTEMS IN A EDUCATIONAL BUILDING

2016 ◽  
Vol 4 (2) ◽  
Author(s):  
Marcela T Oliveira ◽  
Henrique C Sampaio ◽  
José N Salvador Júnior
Keyword(s):  
Economic Feasibility ◽  
Photovoltaic Systems

RENEWABLE ENERGY INTEGRATION FOR HOT WATER SUPPLY AND HEATING OF BUILDINGS

2021 ◽  
pp. 3-12
Author(s):  
Yu. Selikhov ◽  
K. Gorbunov ◽  
V. Stasov
Keyword(s):  
Solar Energy ◽  
Heat Production ◽  
Heat Supply ◽  
Alternative Energy ◽  
Fossil Fuel ◽  
Heat Pumps ◽  
Climatic Conditions ◽  
Economic Feasibility ◽  
Hot Water ◽  
The Cost

Solar energy is widely used in solar systems, where economy and ecology are combined. Namely, this represents an important moment in the era of depletion of energy resources. The use of solar energy is a promising economical item for all countries of the world, meeting their interests also in terms of energy independence, thanks to which it is confidently gaining a stable position in the global energy sector. The cost of heat obtained through the use of solar installations largely depends on the radiation and climatic conditions of the area where the solar installation is used. The climatic conditions of our country, especially the south, make it possible to use the energy of the Sun to cover a significant part of the need for heat. A decrease in the reserves of fossil fuel and its rise in price have led to the development of optimal technical solutions, efficiency and economic feasibility of using solar installations. And today this is no longer an idle curiosity, but a conscious desire of homeowners to save not only their financial budget, but also health, which is possible only with the use of alternative energy sources, such as: double-circuit solar installations, geothermal heat pumps (HP), wind power generators. The problem is especially acute in the heat supply of housing and communal services (HCS), where the cost of fuel for heat production is several times higher than the cost of electricity. The main disadvantages of centralized heat supply sources are low energy, economic and environmental efficiency. And high transport tariffs for the delivery of energy carriers and frequent accidents on heating mains exacerbate the negative factors inherent in traditional district heating. One of the most effective energy-saving methods that make it possible to save fossil fuel, reduce environmental pollution, and meet the needs of consumers in process heat is the use of heat pump technologies for heat production.

scholarly journals Regarding some aspects of economic feasibility for the transport integrated use in favor of environmental security

2018 ◽  
Vol 170 ◽  
pp. 05001 ◽  
Author(s):  
Ruben Kazaryan
Keyword(s):  
National Security ◽  
Transport System ◽  
Developed Countries ◽  
Climatic Conditions ◽  
Environmental Security ◽  
Economic Feasibility ◽  
Transport Systems ◽  
Domestic Water ◽  
European Area ◽  
High Dynamics

The transport system in Russia and the transport support issues of national security differ completely from the Occident and other developed countries due to geostrategic and natural climatic conditions of our country. The integrated transport system, where in a sufficiently coherent manner used are the roads and railways, domestic water and air ways, pipeline transport, is more developed in the European area of the country. However there is no assessment of economic feasibility for the integrated transport lines. Firstly, assessment criteria for the transport support efficiency in favor of environmental security; secondly, mathematical economic models of various transport types integrated use in favor of environmental security; thirdly, economic feasibility methods for transport integrated use in favor of environmental security, that unavoidably leads to unreasonable transport operations using the existing rail and water ways at little distances, and increases their base cost by several times versus the transport by road. High dynamics of transport support for economic, demographic and environmental security within a market economy require the development of approach for the transport integrated use in favor of Russia national security. This article describes some practical recommendations for transport systems control bodies.

scholarly journals Aspects of economic feasibility for the transport integrated use in favor of environmental security

2018 ◽  
Vol 193 ◽  
pp. 01009 ◽  
Author(s):  
Ruben Kazaryan
Keyword(s):  
National Security ◽  
Transport System ◽  
Developed Countries ◽  
Climatic Conditions ◽  
Environmental Security ◽  
Economic Feasibility ◽  
Transport Systems ◽  
Domestic Water ◽  
European Area ◽  
High Dynamics

The transport system in Russia and the transport support issues of national security differ completely from the Occident and other developed countries due to geostrategic and natural climatic conditions of our country. The integrated transport system, where in a sufficiently coherent manner used are the roads and railways, domestic water and air ways, pipeline transport, is more developed in the European area of the country. However, there is no assessment of economic feasibility for the integrated transport lines system. Firstly, assessment criteria for the transport support efficiency in favor of environmental security; secondly, mathematical economic models of various transport types integrated use in favor of environmental security; thirdly, economic feasibility methods for transport integrated use in favor of environmental security, that unavoidably leads to unreasonable transport operations using the existing rail and water ways at little distances, and increases their base cost by several times versus the transport by road. High dynamics of transport support for economic, demographic and environmental security within a market economy require the development of approach for the transport integrated use in favor of Russia national security. This article describes some practical recommendations for transport systems control bodies regarding the efficiency improvement of their use in favor of environmental security.

scholarly journals Comparative Study of Maximum Power Point Tracking Techniques for Photovoltaic Systems

2015 ◽  
Vol 2015 ◽  
pp. 1-10 ◽  
Author(s):  
Fernando Lessa Tofoli ◽  
Dênis de Castro Pereira ◽  
Wesley Josias de Paula
Keyword(s):  
Comparative Study ◽  
Fossil Fuels ◽  
Climatic Conditions ◽  
Maximum Power ◽  
Photovoltaic Systems ◽  
Pv System ◽  
Maximum Power Point ◽  
Pv Systems ◽  
Point Tracking ◽  
Power Point

The generation of electricity from photovoltaic (PV) arrays has been increasingly considered as a prominent alternative to fossil fuels. However, the conversion efficiency is typically low and the initial cost is still appreciable. A required feature of a PV system is the ability to track the maximum power point (MPP) of the PV array. Besides, MPP tracking (MPPT) is desirable in both grid-connected and stand-alone photovoltaic systems because the solar irradiance and temperature change throughout the day, as well as along seasons and geographical conditions, also leading to the modification of theI×V(current versus voltage) andP×V(power versus voltage) curves of the PV module. MPPT is also justified by the relatively high cost of the energy generated by PV systems if compared with other sources. Since there are various MPPT approaches available in the literature, this work presents a comparative study among four popular techniques, which are the fixed duty cycle method, constant voltage (CV), perturb and observe (P&O), and incremental conductance (IC). It considers different operational climatic conditions (i.e., irradiance and temperature), since the MPP is nonlinear with the environment status. PSIM software is used to validate the assumptions, while relevant results are discussed in detail.

scholarly journals Common mode behavior in grid connected DC and AC decoupled PV Inverter topologies

2016 ◽  
Vol 65 (3) ◽  
pp. 481-493 ◽  
Author(s):  
D. John Sundar ◽  
M. Senthil Kumaran
Keyword(s):  
Leakage Current ◽  
High Efficiency ◽  
Economic Feasibility ◽  
Photovoltaic Systems ◽  
Common Mode ◽  
Pv Inverter ◽  
Mode Behavior ◽  
The Common ◽  
Utility Grid ◽  
The Impact

Abstract The transformer-less grid connected inverters are gaining more popularity due to their high efficiency, very low ground leakage current and economic feasibility especially in photovoltaic systems. The major issue which surfaces these systems is that of common mode leakage current which arises due to the absence of an electrical transformer connected between the inverter and the utility grid. Several topologies have evolved to reduce the impact of common mode leakage current and a majority of them have succeeded in eliminating the impacts and have well kept them within the limits of grid standards. This paper compares and analyses the impact of the common mode leakage current for four popular inverter configurations through simulation of the topologies such as H5, H6, HERIC and FBZVR inverters.

scholarly journals Analysis of the requrements for installing photovoltaic systems in order to achieve improved performances: Case study of the City of Nis

2017 ◽  
Vol 15 (2) ◽  
pp. 145-152
Author(s):  
Marija Stamenkovic ◽  
Snezana Antolovic ◽  
Dragan Kostic ◽  
Mihailo Mitkovic
Keyword(s):  
Solar Energy ◽  
Energy Use ◽  
Pilot Project ◽  
Climatic Conditions ◽  
Renewable Energies ◽  
Small Scale ◽  
Photovoltaic Systems ◽  
Solar Plant ◽  
Sustainable Electricity ◽  
The City

The use of renewable energies is imperative nowadays. One of the ways to use clean technologies is installation of photovoltaic systems which convert solar energy into electricity, through solar plants. The country?s potential for usage of solar energy is determined by the analysis of climatic conditions. The research is conducted on the example of a small-scale solar plant - a pilot project installed in the city of Nis, concerning the analysis of the mounted system and giving the recommendations for their design with the aim of improving efficient energy use. Limitations in the installation of solar plants can occur in the case of an unfavorable position of the building where the installation is planned, and more often, the limitations are related to the investment costs and length of the repayment period of these kinds of technologies. This paper represents a promotion of sustainable electricity supply for our country and it is in correlation with the legal directives of using renewable energies.

Sign in / Sign up

Export Citation Format

Share Document